Method for retaining percutaneous transluminal coronary angioplasty guide wire left ventricular pacing

A technique of coronary artery and endoplasty, applied in surgery, electrotherapy, medical science, etc., can solve problems such as treatment failure, and achieve the effect of no complications, large test fluctuations, and good treatment effect

Inactive Publication Date: 2015-10-14
FOURTH MILITARY MEDICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the failure of left ventricular electrode placement is still the main reason for the failure of biventricular synchronized pacing therapy

Method used

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  • Method for retaining percutaneous transluminal coronary angioplasty guide wire left ventricular pacing

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Effect test

Embodiment 1

[0012] A 77-year-old male patient suffered from intermittent chest tightness, shortness of breath, and palpitation for 4 years, and was admitted to the hospital in January after aggravation. Diagnosis: dilated cardiomyopathy, cardiac function grade IV. After being given optimized drug therapy after admission, a Medtronic 8042 three-chamber pacemaker was implanted. During the implantation process, the 4193-type left ventricular electrode entered multiple coronary veins, and the pacing was poor. However, the extended pacing in the lateral cardiac vein with the percutaneous transluminal coronary angioplasty guidewire obtained a satisfactory threshold (1.5V), but the impedance The lower level was only 306ohms, and the muscle beating at the place where the pacemaker was implanted in the patient was obvious. After changing the left ventricular electrode pacing mode from Unipolar to LVtip / RVring mode, the muscle beating disappeared. Follow-up 1 month later, no adverse events occurred....

Embodiment 2

[0014] A 77-year-old male patient suffered from intermittent chest tightness, shortness of breath, and palpitation for 4 years. He was admitted to the hospital after aggravation in January. The electrocardiogram showed: sinus rhythm, QRS wave duration of 167ms, and complete left bundle branch block. Cardiac color Doppler: dilated cardiomyopathy, left ventricular ejection fraction (LVEF) measured by biplane method was 0.12, left ventricular end-diastolic diameter (LVEDD) was 84mm, left ventricular posterior and inferior motion delay, (Ts-SD-12 ): 94ms. Clinical diagnosis: dilated cardiomyopathy, cardiac function grade IV. After being given optimized drug therapy after admission, a Medtronic 8042 three-chamber pacemaker was implanted. During the implantation process, third-degree atrioventricular block occurred when the coronary sinus guiding catheter was placed, and the right ventricular electrode was implanted immediately for pacing. During the placement of the 4193 type lef...

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Abstract

The present invention discloses a method for retaining percutaneous transluminal coronary angioplasty (PTCA) guide wire left ventricular pacing. In the guide wire implantation process of a PTCA guide wire in a left ventricular, the PTCA guide wire is retained in an electrode and extends out of the far end of the electrode, as the extension of a pacing electrode, the effects of stabilizing the electrode and searching a more suitable pacing position can be achieved, for example a best pacing position vessel is thin. The method can be applied to the condition that a repeated acute dislocation and a large pacing threshold test fluctuation appear in the operation after a left ventricular guide wire is implanted and no other suitable target vein or other suitable guide wire can be selected, and the treatment effect is good without complications.

Description

technical field [0001] The invention relates to a method for left ventricular pacing by retaining the guide wire of percutaneous coronary angioplasty. Background technique [0002] Biventricular synchronous pacing has made considerable progress in the treatment of congestive heart failure, and the key is left ventricular electrode placement. Due to the continuous improvement of pacing electrodes and electrode introduction systems, the success rate of left ventricular electrode placement has increased significantly. However, the failure of left ventricular electrode placement is still the main reason for the failure of biventricular synchronized pacing therapy. In this case, because the pacing thresholds of the left ventricular electrodes in multiple target coronary veins were too high, the retained guidewire technique was used to extend the pacing with the guidewire, and good curative effect was obtained. Contents of the invention [0003] In order to solve the above pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N1/372A61B17/00
Inventor 易甫刘兵
Owner FOURTH MILITARY MEDICAL UNIVERSITY
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